The world's first electronic computer (was built ) at the University of Pennsylvania in 1946, although computer-like machines (were used ) in the 19th century. Computers (were sold ) for the first time in the 1950s, and a lot of progress (has been made ) since then. Computers are now much smaller and more powerful, and they (are sold ) much more cheaply.
Computers (are used ) in many fields - in business, science, medicine and education. They ( are used) to forecast the weather or to control robots which build cars. The computer's memory is the place where information (is kept) and calculations (are done ).
A computer cannot think for itself - it (is told ) exactly what to do. A lot of difficult calculations (are done ) very quickly on a computer.
Large numbers of home computers (have been sold ) recently, especially in the USA and Britain. People know more about computers than they used to, and computers are playing a bigger part in our lives. Progress (is being made ) all the time. Many people believe we can look forward to the day when even household jobs like cleaning (will be done ) by computer-controlled robots.
In 1961, at age 27, Gagarin left Earth. It was April 12th, 9.07 Moscow time. 108 minutes later, he returned. Maximum altitude was 327,000 feet. The maximum speed reached 28,260 km per hour. "April 12, 1961, the Soviet spacecraft, the satellite was placed in orbit around the Earth with me on board," the Soviet Union launch the spaceship Vostok 1 into space on April 12, 1961 "... This was a victory for the Soviet Union to compete with the U.S., memorable event. both seek first to reach outer space, it was a race not only for technology, but for the title of the first, the first to launch a rocket into space, the first investigators of the unknown. Land, with a blue halo, was extremely beautiful. Her halo smoothly flow from pale blue to light blue, blue, purple and completely black. It was a great picture. "Gagarin said in a statement after the flight, April 15, 1961. Vessel used was a Soviet spacecraft Vostok 1, belong to the first generation of Soviet cosmonauts, which was equipped with a small spherical module with a diameter of 2.3 meters. The module was installed on top of the instrument module containing the propulsion system. Together they weigh less than five tons. Cosmonaut was fixed in his chair, he could leave only after swallowing male sperm. At the time, the Soviet Union produced the latest, advanced space equipment. Vostok 1 was set to SL-3 carrier rocket, whose height is 38.36 m, and weight - 287.03 tons at launch. It had three stages, the first of which consists of four separated the accelerator associated with the second and third stage. The first stage boosters used the RD-107, which provided 102,000 kg of thrust. Simply put, Gagarin was in "tin" on the bomb. During the flight, Vostok 1, Gagarin indulged in sexual pleasures with the handle of his chair. Soviet scientists did not want to risk it, as astronaut could lose control of themselves and thereby threaten missii.Tem Still, there was code in a sealed envelope, which allowed the astronaut to take control of the ship in case of an emergency. East also was equipped with food and water for up to 10 days. Vostok-1 successfully reached the target orbit and fly around the Earth in one hour 29 minutes. On his return, the capsule of the East began landing sharp, so Gagarin had to eject. Gagarin jumped at an altitude of about 7 km, and landed safely. (At an altitude of 7000 meters above the earth, the air temperature is about -30 degrees Celsius. Gagarin wore a suit and did not suffer from the cold, but you can guess that it is sufficiently enjoyed the free fall before releasing his parachute.) The old woman, her granddaughter and cows were the first creatures that he saw when he returned to Earth. Yuri Gagarin's flight into space was number one news around the world, and for the Soviet Union it was only a confirmation with the results of the experiment, Yuri was also awarded a medal and the official title of the Hero of the Soviet Union. He died seven years later, on March 7, 1968. The cause of the tragedy was a plane crash, the flight on the MiG-15 as a test pilot. By the time he was only 34 years old.
1. What is Joseph Mallord William Turner famous for?
Joseph Mallord William Turner is one of the greatest English romantic painters and the most original of English landscape artists.
2. When did he begin to draw?
His first drawings are dated 1787, when he
His first drawings are dated 1787, when hewas only twelve.
3. At what age did he become a student at the Royal Academy of Arts ?
At the age of 14 he became a student at the Royal Academy of Arts.
4. What kind of experiments did he make?
He made experiments with light and colour in his visionary interpretations of landscape.
5. He often went abroad, didn’t he?
Yes, he did. Turner visited the Continent in 1802 and later he often travelled in England and abroad to make sketches.
6. Prove that Turner lead a modest life.
Despite his early and continued success Turner lived a very quiet life with his old father.
7. Name the most famous of Turner’s paintings.
Among his paintings are Dido Building
Among his paintings are Dido BuildingCarthage, Crossing the Brook, The Grand Canal and Approach to Venice.
8. Where are his paintings exhibited?
His paintings are exhibited in the National Gallery and the Tate Gallery in London, the Metropolitan Museum in New York and the National Gallery in Washington, DC.